问题描述：
[单选]
The needle valve in the injector（）at a pre-set pressure which ensures that the fuel will atomize once it enters the cylinder．
A．will lift
B．will be lifted
C．will close
D．will be closed
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答案解析：无
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答案解析：无
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上一篇：The needle valve will open when the fuel pressure acting on the needle valve（）exerts a sufficient force to overcome the spring compression．
下一篇：The needle valve in a fuel valve will（）when the fuel pressure action on the needle valve tapered face exerts a force lower than that of the spring compression．
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